1 files changed, 163 insertions, 0 deletions
diff --git a/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/errors/DefaultExceptionMapper.java b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/errors/DefaultExceptionMapper.java
new file mode 100644
index 0000000000..67da814f48
--- /dev/null
+++ b/openecomp-be/api/openecomp-sdc-rest-webapp/openecomp-sdc-common-rest/src/main/java/org/openecomp/sdcrests/errors/DefaultExceptionMapper.java
@@ -0,0 +1,163 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * SDC
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.sdcrests.errors;
+
+import org.codehaus.jackson.map.JsonMappingException;
+import org.hibernate.validator.internal.engine.path.PathImpl;
+import org.openecomp.core.utilities.CommonMethods;
+import org.openecomp.core.utilities.file.FileUtils;
+import org.openecomp.core.utilities.json.JsonUtil;
+import org.openecomp.sdc.common.errors.CoreException;
+import org.openecomp.sdc.common.errors.ErrorCategory;
+import org.openecomp.sdc.common.errors.ErrorCode;
+import org.openecomp.sdc.common.errors.ErrorCodeAndMessage;
+import org.openecomp.sdc.common.errors.GeneralErrorBuilder;
+import org.openecomp.sdc.common.errors.JsonMappingErrorBuilder;
+import org.openecomp.sdc.common.errors.ValidationErrorBuilder;
+import org.slf4j.LoggerFactory;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import javax.validation.ConstraintViolation;
+import javax.validation.ConstraintViolationException;
+import javax.validation.Path;
+import javax.ws.rs.core.MediaType;
+import javax.ws.rs.core.Response;
+import javax.ws.rs.ext.ExceptionMapper;
+
+public class DefaultExceptionMapper implements ExceptionMapper<Exception> {
+  private static final String ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE =
+      "errorCodesToResponseStatusMapping.json";
+  private static Map<String, String> errorCodeToResponseStatus = JsonUtil
+      .json2Object(FileUtils.getFileInputStream(ERROR_CODES_TO_RESPONSE_STATUS_MAPPING_FILE),
+          Map.class);
+  private static org.slf4j.Logger logger = LoggerFactory.getLogger(DefaultExceptionMapper.class);
+
+  @Override
+  public Response toResponse(Exception e0) {
+    Response response;
+    if (e0 instanceof CoreException) {
+      response = transform(CoreException.class.cast(e0));
+    } else if (e0 instanceof ConstraintViolationException) {
+      response = transform(ConstraintViolationException.class.cast(e0));
+
+    } else if (e0 instanceof JsonMappingException) {
+      response = transform(JsonMappingException.class.cast(e0));
+
+    } else {
+      response = transform(e0);
+    }
+
+    List<Object> contentTypes = new ArrayList<>();
+    contentTypes.add(MediaType.APPLICATION_JSON);
+    response.getMetadata().put("Content-Type", contentTypes);
+    return response;
+  }
+
+  private Response transform(CoreException coreException) {
+    Response response;
+    ErrorCode code = coreException.code();
+    logger.error(code.message(), coreException);
+
+    if (coreException.code().category().equals(ErrorCategory.APPLICATION)) {
+      if (Response.Status.NOT_FOUND.name().equals(errorCodeToResponseStatus.get(code.id()))) {
+        response = Response
+            .status(Response.Status.NOT_FOUND)
+            .entity(toEntity(Response.Status.NOT_FOUND, code))
+            .build();
+      } else if (Response.Status.BAD_REQUEST.name()
+          .equals(errorCodeToResponseStatus.get(code.id()))) {
+        response = Response
+            .status(Response.Status.BAD_REQUEST)
+            .entity(toEntity(Response.Status.BAD_REQUEST, code))
+            .build();
+      } else {
+        response = Response
+            .status(Response.Status.EXPECTATION_FAILED)
+            .entity(toEntity(Response.Status.EXPECTATION_FAILED, code))
+            .build();
+      }
+    } else {
+      response = Response
+          .status(Response.Status.INTERNAL_SERVER_ERROR)
+          .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, code))
+          .build();
+    }
+
+
+    return response;
+  }
+
+  private Response transform(ConstraintViolationException validationException) {
+    Set<ConstraintViolation<?>> constraintViolationSet =
+        validationException.getConstraintViolations();
+    String message;
+
+    String fieldName = null;
+    if (!CommonMethods.isEmpty(constraintViolationSet)) {
+      // getting the first violation message for the output response.
+      ConstraintViolation<?> constraintViolation = constraintViolationSet.iterator().next();
+      message = constraintViolation.getMessage();
+      fieldName = getFieldName(constraintViolation.getPropertyPath());
+
+    } else {
+      message = validationException.getMessage();
+    }
+
+    ErrorCode validationErrorCode = new ValidationErrorBuilder(message, fieldName).build();
+
+    logger.error(validationErrorCode.message(), validationException);
+    return Response
+        .status(Response.Status.EXPECTATION_FAILED) //error 417
+        .entity(toEntity(Response.Status.EXPECTATION_FAILED, validationErrorCode))
+        .build();
+  }
+
+
+  private Response transform(JsonMappingException jsonMappingException) {
+    ErrorCode jsonMappingErrorCode = new JsonMappingErrorBuilder().build();
+    logger.error(jsonMappingErrorCode.message(), jsonMappingException);
+    return Response
+        .status(Response.Status.EXPECTATION_FAILED) //error 417
+        .entity(toEntity(Response.Status.EXPECTATION_FAILED, jsonMappingErrorCode))
+        .build();
+  }
+
+  private Response transform(Exception e0) {
+    ErrorCode generalErrorCode = new GeneralErrorBuilder(e0.getMessage()).build();
+    logger.error(generalErrorCode.message(), e0);
+    return Response
+        .status(Response.Status.INTERNAL_SERVER_ERROR)
+        .entity(toEntity(Response.Status.INTERNAL_SERVER_ERROR, generalErrorCode))
+        .build();
+  }
+
+  private String getFieldName(Path propertyPath) {
+    return ((PathImpl) propertyPath).getLeafNode().toString();
+  }
+
+  private Object toEntity(Response.Status status, ErrorCode code) {
+    return new ErrorCodeAndMessage(status, code);
+  }
+
+}